37640977989 has 16 divisors (see below), whose sum is σ = 50270875200. Its totient is φ = 25052567040.

The previous prime is 37640977967. The next prime is 37640977991. The reversal of 37640977989 is 98977904673.

37640977989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 37640977989 - 2⁹ = 37640977477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37640970989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8272287 + ... + 8276835.

It is an arithmetic number, because the mean of its divisors is an integer number (3141929700).

Almost surely, 2^37640977989 is an apocalyptic number.

It is an amenable number.

37640977989 is a deficient number, since it is larger than the sum of its proper divisors (12629897211).

37640977989 is a wasteful number, since it uses less digits than its factorization.

37640977989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500.

The product of its (nonzero) digits is 144027072, while the sum is 69.

The spelling of 37640977989 in words is "thirty-seven billion, six hundred forty million, nine hundred seventy-seven thousand, nine hundred eighty-nine".